. >> from the 12th annual national book festival on the national mall in washington, d.c., bob woodward presents his book, "the price of politics." this is about 45 minutes. [applause] >> thank you. thanks.k it's great to be here. i'm going to put myself on the clock so i don't talk too long,h and then we have lots of time for questions. and then we have lots of times the questions. and i want to begin by recounting something that occurred about five or six years ago my wife and i were at an aging conference and how to deal with aging. how many people are interested in the subject of aging? raise your hand. okay, you all are. i tell you. at age 69, i am deeply interested in the subject of aging. and they have psychiatrists and physicians and so forth on this panel. james watson, who was the codiscoverer of dna, the nobel prize winner was also on the panel. we had the discussion and it went on for an hour, and watson said nothing. that is the end of zero comments. now, you know the power of silence was just overwhelming, and so finally, the moderator, charlie rose asked him, doctor watso